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CVE-2023-38709 is an HTTP response-splitting vulnerability in the Apache HTTP Server core affecting versions through 2.4.58. Faulty validation of backend- or content-generator-supplied output permits malicious or compromised generators to introduce response-boundary data, causing Apache to emit split HTTP responses.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
11 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A previously addressed vulnerability for which the referenced fix was incomplete.
A medium-severity response splitting vulnerability in Apache HTTP Server identified on the C2 server.
An Apache HTTP Server HTTP response-splitting vulnerability. The content provides no additional exploitation or remediation details beyond its inclusion in the research findings.
An HTTP response-splitting vulnerability in Apache HTTP Server identified in the article's list of Confusion Attacks-related findings.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.